C1111133313331323223313331333133313331323131211111311331323221321   >>    C111113331333132322331333133313331333132313121111131133132322132   <<    C1111133313331323223313331333133313331323131211111311331323221323   >>      C1111133313331323223313331333133313331323131211111311331323221322   >>